# Java Multi-Version Conflict Detection

## Module
Scanner

## Status
VERIFIED

## Description
Detects version conflicts where multiple versions of the same groupId:artifactId appear in the resolved dependency tree, flagging Maven nearest-wins and Gradle forced-version resolutions.

## Implementation Details
- **Conflict Detection**:
  - `src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.Lang.Java/Internal/Conflicts/VersionConflictDetector.cs` - `VersionConflictDetector` identifies version conflicts where multiple versions of the same `groupId:artifactId` are resolved in the dependency tree, flagging Maven nearest-wins and Gradle forced-version resolution strategies
- **Language Analyzer Integration**:
  - `src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.Lang.Java/JavaLanguageAnalyzer.cs` - `JavaLanguageAnalyzer` integrates conflict detection into the analysis pipeline

## E2E Test Plan
- [ ] Scan a Maven project with diamond dependency conflicts (A depends on B:1.0 and C which depends on B:2.0) and verify the conflict is detected
- [ ] Verify Maven "nearest-wins" resolution strategy is correctly identified and the winning version is reported
- [ ] Scan a Gradle project with forced version constraints (`!!` or `force = true`) and verify forced resolutions are flagged
- [ ] Verify conflict detection results include both the requested and resolved versions for each conflicting dependency
- [ ] Verify conflict information appears in scan findings with appropriate severity classification

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## Verification

| Check | Result |
|-------|--------|
| Tier 0 - Source files exist | PASS |
| Tier 1 - Build + code review | PASS |
| Tier 2 - Integration tests | PASS |
| Verified | 2026-02-13T18:10:00Z |